LX8585A-00CP Microsemi Analog Mixed Signal Group, LX8585A-00CP Datasheet

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LX8585A-00CP

Manufacturer Part Number
LX8585A-00CP
Description
IC REG LDO POS 4.6A ADJ TO220
Manufacturer
Microsemi Analog Mixed Signal Group
Datasheet

Specifications of LX8585A-00CP

Regulator Topology
Positive Adjustable
Voltage - Output
Adjustable
Voltage - Input
Up to 10V
Voltage - Dropout (typical)
1.1V @ 4.6A
Number Of Regulators
1
Current - Output
4.6A
Operating Temperature
0°C ~ 125°C
Mounting Type
Through Hole
Package / Case
TO-220
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Current - Limit (min)
-
Copyright © 1997
Rev. 2.2a, 2005-11-10
low dropout three-terminal regulators
with a minimum of 4.6A output
current.
Power PCTM applications requiring
fast transient response are ideally
suited for this product family. The
LX8585A is guaranteed to have <
1.2V at 4.6A, while the LX8585 are
specified for 1.4V, making them ideal
to provide well regulated outputs of
2.5V to 3.6V using a 5V input supply.
Fixed versions are also available and
specified in the Available Options
table below. Current limit is trimmed
above 4.6A to ensure adequate output
current and controlled
IMPORTANT: For the most current data, consult MICROSEMI’s website:
Thick traces represent high current traces which must be low resistance / low inductance
traces in order to achieve good transient response.
The LX8585/85A Series ICs are
5V
TM
220 µF
10V
Low ESR
from Sanyo
Pentium
3
V
3.50
3.38
V
OUT
IN
LX8585A
75 & 166 MH
Part
T
ADJ
0.1 µF
50V
HE
1
®
V
3
A
OUT
0 to 125
250pF
11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570
PPLICATION OF THE
V
V
V
Open
T
Note: Available in Tape & Reel. Append the letters “TR” to the part number. (i.e. LX8585-15CDD-TR)
2
Short
Processor
+
+
+
JP1
SGND FGND
2
A
P R O D U C T H I G H L I G H T
LX1431
(°C)
Part
5
1k Ω
COL
Z
1
1k Ω
D E S C R I P T I O N
P54C P
6
REF
75/90/100/133MHz, STND, 5V Cache
0.01 µF
Dropout
8
Voltage
120 / 166MHz, VRE, 5V Cache
2.84k Ω
and
1.4V
1.2V
0.1%
LX8585A & LX1431
ROCESSORS
Typical Application
short-circuit current. On-chip thermal
limiting provides protection against any
possible overload that would create
excessive junction temperatures. The
LX8585/85A family is available in both
through-hole
versions of the industry standard 3-pin
TO-220 / TO-263 power packages.
Reference
products offer precision output voltage
and are ideal for use in VRE
applications (see application below).
For higher current applications, see the
LX8584 data sheet.
1k
0.1%
330 µ F, 6.3V
Oscon Type
from Sanyo
The
Low ESR
JP1
P A C K A G E O R D E R I N F O
21k
1%
(See Table Below)
P
U
2x
V O 4.6A
Integrated Products Division
SING
Transition DC: 0543
LX8585A-xxCP
LX8585-xxCP
®
RoHS Compliant
5V C
LX1431
Microsemi
http://www.microsemi.com
Plastic TO-220
3-Pin
and
PLACE IN µP SOCKET CAVITY
IN A
ACHE
and
1 µ F x 10
SMD
100 µ F x 6
AVX TYPE
LX8585A
10V
TPS
4.6A Low Dropout Positive Regulators
Programmable
surface-mount
Load
µP
Series
DD
P
RODUCTION
LX8585A-xxCDD
Transition DC: 0535
LX8585-xxCDD
RoHS Compliant
Other voltage options may be available.
Please contact factory for details.
Plastic TO-263
3-Pin
LX8585-xx / LX858A-xx
Available Options Per Part Number
LX8585/85A-00
LX8585/85A-15
LX8585/85A-33
Part #
Three Terminal Adjustable or
Fixed Output
Guaranteed < 1.2V headroom
@ 4.6A (LX8585A)
Guaranteed < 1.4V headroom
@ 4.6A (LX8585)
Guaranteed < 1.3V Headroom
@ 3A
Output Current of 4.6A
Minimum
Fast Transient Response
1% Voltage Reference Initial
Accuracy
Output Short Circuit Protection
Built-In Thermal Shutdown
Pentium Processor Supplies
Power PC Supplies
Microprocessor Supplies
Low Voltage Logic Supplies
Battery Powered Circuit
Post Regulator for Switching
Supply
CYRIX® 6x86™ Supplies
AMD-K5™ Supplies
D
ATA
K E Y F E A T U R E S
A P P L I C A T I O N S
S
HEET
Output Voltage
Adjustable
1.5V
3.3V
Page 1

Related parts for LX8585A-00CP

LX8585A-00CP Summary of contents

Page 1

... Processor Power PCTM applications requiring fast transient response are ideally suited for this product family. The LX8585A is guaranteed to have < 1.2V at 4.6A, while the LX8585 are specified for 1.4V, making them ideal to provide well regulated outputs of 2.5V to 3.6V using a 5V input supply. ...

Page 2

Power Dissipation ....................................................................................Internally Limited Input Voltage .................................................................................................................10V Input to Output Voltage Differential..............................................................................10V Maximum Operating Junction Temperature .............................................................. ...

Page 3

... Line Regulation (Note 2) Load Regulation (Note 2) Thermal Regulation (Note 3) Ripple Rejection (Note 3) Quiescent Current LX8585-15 Dropout Voltage LX8585A-15 Temperature Stability (Note 3) Long Term Stability (Note 3) RMS Output Noise (% of V )(NOTE 3) OUT Note 2: Regulation is measured at constant junction temperature, using pulse testing with a low duty cycle. Changes in output voltage due to heating effects are covered under the specification for thermal regulations ...

Page 4

TM LX8585/85A (Note A) V OUT IN IN ADJ 10µ improves ripple rejection. 365 Ω should be ≈ ripple frequency. Figure 1 – Improving Ripple Rejection V IN (Note A) TTL Output ...

Page 5

TM The LX8585/85A Series ICs are easy to use Low-Dropout (LDO) voltage regulators. They have all of the standard self- protection features expected of a voltage regulator: short circuit protection, safe operating area protection and automatic thermal shutdown if the ...

Page 6

TM OVERLOAD RECOVERY (continued) If this limited current is not sufficient to develop the designed voltage across the output resistor, the voltage will stabilize at some lower value, and will never reach the designed value. Under these circumstances, it may ...

Page 7

TM LOAD REGULATION (continued) Even when the circuit is configured optimally, parasitic resistance can be a significant source of error. A 100 mil (2.54 mm) wide PC trace built from 1 oz. copper-clad circuit board material has a parasitic resistance ...

Page 8

TM P 3-Pin Plastic TO-220 Copyright © 1997 Rev. 2.2a, 2005-11-10 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 4.6A Low Dropout Positive Regulators P ...

Page 9

TM DD 3-Pin Plastic TO-263 0° -8° J Seating Plane Copyright © 1997 Rev. 2.2a, 2005-11-10 11861 Western Avenue, Garden Grove, CA. 92841, 714-898-8121, Fax: 714-893-2570 ® 4.6A Low Dropout Positive Regulators P RODUCTION ...

Page 10

TM PRODUCTION DATA – Information contained in this document is proprietary to Microsemi and is current as of publication date. This document may not be modified in any way without the express written consent of Microsemi. Product processing does not ...

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